5.3 Into the wild 【重点语法】-2021-2022学年高一英语上册链接教材精准变式练（外研版2019必修第一册）

限制性定语从句 — 单元语法精讲 本单元语法为本单元语法为限制性定语从句中，关系代词的用法。 课文例句： 1.These two pieces of information—the time of day and the point where the sun is in the sky—allow the butterfly to determine the way to go. 2.Eventually, it manages to reach the places where it will spend the winter. 3.The solution to the mystery of the monarch’s amazing ability comes at a time when it is in serious trouble. 4.Sadly, human activity is the main reason why the number of monarch butterflies is falling. 5.In many of the places where the butterfly can be found, people are destroying the natural environment. 6.there may come a time when the number of monarch butterflies increases once again. 语法总结： 上文中黑体部分引导的是定语从句，它们均为关系副词。 考点 1.when 指时间，在从句中作时间状语。它的先行词通常有：time, day, week, year 等。 Eg: I can not forget the first time when I encountered you. 2.where 指地点，在从句中作地点状语。它的先行词通常有：place, street, house, city, country 以及一些抽象意义的名词，如 point, case, position, condition, situation。 Eg: This is the hotel where they lived a week ago. 3.当先行词